function PhonesController($scope){
    $scope.phones = [
        { name : "Lumia640",
          snippet : "Uncomfortable" },
        { name : "iPhone",
          snippet : "Don't know" },
        { name : "Nexus S", 
          snippet : "Fast just got faster with Nexus S"}
    ];
    
    $scope.img_url = "./" + "tutorial_02.png";
}